SOLUTION: If 40 mg of a radioactive substance decays to 5 mg in 12 minutes, find the half life of the substance in minutes.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: If 40 mg of a radioactive substance decays to 5 mg in 12 minutes, find the half life of the substance in minutes.      Log On


   



Question 1044458: If 40 mg of a radioactive substance decays to 5 mg in 12 minutes, find the half life of the substance in minutes.
Answer by josgarithmetic(39617) About Me  (Show Source):